问题描述：
_____the five years of living in shanghai,i have found that shanghai is a wonderful city.A:for B:
_____the five years of living in Shanghai,I have found that Shanghai is a wonderful city.A:for B:through 我认为选B,因为这是现在完成时态,用for 引导一段时间啊
_____the five years of living in Shanghai,I have found that Shanghai is a wonderful city.A:for B:through 我认为选B,因为这是现在完成时态,用for 引导一段时间啊
问题解答：
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